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Exchange · Phoenix, AZ

(623) 283-xxxx

Every number from 623-283-0000 to 623-283-9999. NANPA records the exchange as assigned to Onvoy (Sinch) for Phoenix, AZ in 2022. Robocall and scam operations often use many numbers from one exchange, so if one number here is a shady call, its neighbors deserve a second look.

CarrierOnvoy (Sinch)original
Line typeVoIP / internet phonelikely
Rate centerPhoenix, AZ
Flagged numbers1

Reported numbers starting 623-283

NumberVerdictWhat it isReportsComplaints
(623) 283-2811CautionRobocall / recorded message03

About the 623-283 exchange

623-283 is an exchange (the first six digits of a phone number) in area code 623, which covers Arizona. NANPA, which runs the North American Numbering Plan, assigned it to Onvoy (Sinch) for the Phoenix, AZ rate center in 2022. Numbers from this carrier are usually VoIP / internet phone lines.

People keep their number when they move or switch carrier, so this is where the number was first assigned, not where the caller is today. Local time for 623-283 numbers is usually Mountain time. Scammers can also fake (spoof) any number, so a call that shows a 623-283 number may not come from Onvoy (Sinch) at all.

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